Commitments and Contingencies (Estimated Planned Capital Expenditures) (Details) $ in Millions	12 Months Ended
Dec. 31, 2020 USD ($) MW
Planned Capital Expenditures [Line Items]
Guarantor Obligations, Current Carrying Value	$ 288
FPL[Member]
Planned Capital Expenditures [Line Items]
2021	6,890
2022	6,630
2023	6,480
2024	6,710
2025	6,695
Total	33,405
FPL[Member] \| New Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	780
2022	880
2023	680
2024	540
2025	530
Total	3,410
FPL[Member] \| Existing Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	1,085
2022	1,155
2023	1,045
2024	1,010
2025	750
Total	5,045
FPL[Member] \| Transmission and Distribution Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	4,065
2022	3,665
2023	3,825
2024	4,290
2025	4,490
Total	20,335
Planned Generation Capital Expenditures AFUDC First Year	50
Planned Generation Capital Expenditures AFUDC Second Year	50
Planned Generation Capital Expenditures AFUDC Third Year	40
Planned Generation Capital Expenditures AFUDC Fourth Year	55
Planned Generation Capital Expenditures AFUDC Fifth Year	45
FPL[Member] \| Nuclear Fuel Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	220
2022	170
2023	120
2024	145
2025	145
Total	800
FPL[Member] \| General and Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	740
2022	760
2023	810
2024	725
2025	780
Total	3,815
FPL[Member] \| Generation Expenditures [Member]
Planned Capital Expenditures [Line Items]
Planned Generation Capital Expenditures AFUDC First Year	75
Planned Generation Capital Expenditures AFUDC Second Year	50
Planned Generation Capital Expenditures AFUDC Third Year	25
Planned Generation Capital Expenditures AFUDC Fourth Year	15
Planned Generation Capital Expenditures AFUDC Fifth Year	15
Gulf Power [Member]
Planned Capital Expenditures [Line Items]
2021	860
2022	695
2023	625
2024	685
2025	685
Total	3,550
NEER [Member]
Planned Capital Expenditures [Line Items]
2021	5,140
2022	905
2023	455
2024	295
2025	295
Total	7,090
NEER [Member] \| Wind Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	1,770
2022	60
2023	15
2024	15
2025	5
Total	$ 1,865
Planned New Generation To Be Added over 5 Years \| MW	2,394
NEER [Member] \| Solar Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	$ 1,565
2022	340
2023	185
2024	0
2025	0
Total	$ 2,090
Planned New Generation To Be Added over 5 Years \| MW	2,354
NEER [Member] \| Battery Storage Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	$ 355
2022	0
2023	0
2024	0
2025	0
Total	355
NEER [Member] \| Nuclear Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	230
2022	190
2023	145
2024	190
2025	200
Total	955
NEER [Member] \| Pipelines [Member]
Planned Capital Expenditures [Line Items]
2021	285
2022	165
2023	0
2024	0
2025	0
Total	450
NEER [Member] \| Rate-Regulated Transmission [Member]
Planned Capital Expenditures [Line Items]
2021	205
2022	25
2023	10
2024	15
2025	30
Total	285
NEER [Member] \| Other Expenditures [Member]
Planned Capital Expenditures [Line Items]
2021	730
2022	125
2023	100
2024	75
2025	60
Total	$ 1,090

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Estimated planned capital expenditures for the fifth year.

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Estimated planned capital expenditures for the next year.

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Estimated planned capital expenditures for the fourth year.

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Estimated planned capital expenditures for the second year.

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Estimated planned capital expenditures for the third year.

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Planned Generation Capital Expenditures AFUDC First Year

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Estimated AFUDC related to Generation for the remainder of the second year.

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Estimated AFUDC related to Generation for the remainder of the third year

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Planned New Generation To Be Added over 5 Years in Megawatts

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Total estimated planned capital expenditures.

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=121555522&loc=d3e12069-110248

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